Spring-key-shaping machine



(No-Model.) 5 Sheet s-Sheet 1.

J. MURRAY & D. A. BR ISLIN SPRING KEY SHAPING MACHINE- Patented Jul 201886.

(No Model.) 5-Sheets-Sheet 2.

J. MURRAY & D. A. BRISLIN.

SPRING KEY SHAPING MACHINE.

No. 345,7; Patented July 20, 1886.

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No. 345,717. Patented July 20, 1886.

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(No Model.) 5 Sheets-Sheet 4.

J. MURRAY 80 D. A. BRISLIN SPRING KEY SHAPING MAGHINB.

Patented July 20, 1886. 123,, 7,

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' SPRING KEY SHAPING MACHINE.

No. 345,717. Patented July"2 0, 1886.

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- UNITED STATES PATENT OFFICE.

JAMEs MURRAY AND DAVID A: BRISLIN, or ST. LOUIS, MIssoURI.

SPRING KE Y-SHAPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 345,717, dated July 20,1886.

Application filed April 23, 1886.

To all whom it may concern:

Be it known that we, J AMEs MURRAY and DAVID A. BRIsLIN, of St. Louis,Missouri, have jointly made a new and useful Improvement in Spring-Key-Shaping Machines, of which the following is a full, clear, and exactdescription.

The machine in question is designed for forming a special spring-keyused in looking a nut upon a bolt. Its improved features will beexplained in connection with the operation of the machine,and bedesignated in the claims.

In the annexed drawings, making part of this specification, Figure 1 isa. plan of the machine, the parts being as when the rod from which thekeys are made has been partly bent. Fig. 2 is a similar View, the partsbeing as when the rod has been folded nearly into the shape of thedesired key, and the point of the key remains to be formed. Fig. 3 is asimilar view .showing the part termed the hammer in position to shapethe key-point. Fig. 4 is a similar view showing the next stage of theoperation, thekey previously formed having been cut off, the rod fromwhich the keys I are made being advanced into the machine to form asecond key, and the rod-folding device being in position to initiate thefolding of the rod. Fig. 5 is a horizontal section of the machine takenjust below its top. Fig. 6 is a vertical section on the line 6 6 of Fig.4. Figs. 7, 8 are end elevations of the machine, showing, respectively,two positions of the feed mechanism. Fig. 9 is a view in perspective ofthe key made on the machine, and Fig. 10 is a longitudinal section of abolt and nut locked together by means of the key.

The same letters of reference denote the same parts.

A, Figs. 1, 2, 3, 4, represents the metallic rod from which the keys aremade.

B, Figs. 4, 9, represents the key made by the machine in question. A

The rod is fed across the top 0 of the machine by means of thefeed-rolls D D, Figs. 1, 2, 3,, 4, 6, 7, 8, and as follows: E representsthe main shaft of the machine. It is provided with a cam, F, Figs. 7, 8,for the purpose of effecting the oscillation of a forked lever, G, whichis pivoted to the frame W of the machine at g, and adapted to be swungto the right and to the left, as indicated by its two .tically'operatingrod, h

Serial No. 199,974. (No model.)

positions (shown in Figs. 7 and 8, respectively) the cam in its?rotation encountering the forks g g alternately, and thereby swingingthe lever G to and fro. The motion of the lever, by means of the link G,is communicated to the arm 9 of the bell-crank G", which is pivoted at gto the frame H, and whose arm 9 is connected with the rod G and in suchmanner as to cause the rod to rise and fall with the oscillation of thelever G and bell-crank G". The rod at its upper end is provided with apawl, which operates in connection with the ratchet G uponthe shaft 12.When the rod is lifted, the pawl engages with and rotates the ratchet,and when the rod is lowered the pawl drops backward on the ratchet. Thelower end of the rod G is provided with a pin, 9 which passes throughthe slot in the bell-crank, and is thus made to connect therewith, andat any desirable point of adjustment thereon, and at its upper end therod G is held against the ratchet, so that the pawl shall be kept inposition for engagement with the ratchet by means of the arm 9 Figs. 1,2, 3, 4, the rod Gr passing through the pin which in turn passes throughthe pawl g and arm 9, and the arm 9* being journaled on the shaft d. Theratchet G is fastened to the shaft (1, as is also the lower feed-roll,D.The feedrolls D D are respectively provided with the gears d d, whichengage with each other. The upper feed-roll, D, is attached to the shaftd Fig. 7. The rotation of the shaft (1 therefore causes the feed-rollsto rotate and to feed the rod A across the top 0 of the machine in thedirection indicated by the various positions of the rod, as shown inFigs. 3 and 4, respectively. The rod, as it is fed, passes over theupper end of an upright shaft, H, which is held and adapted to berotated reciprocatingly in a suitable bearing, h, Fig. 6, in themachineframe. The shaft, at a point at the side of its center, isprovided with a projection, h, which is in the form of a pin, andpreferably furnished with a friction-roller. The shaft at its center isperforated vertically to receive a ver- The pin h is spaced sufficientlyapart from the rod h to admit the rod A between them, as shown in thevarious figures above named. The shaft H, by means presently described,is caused to rotate in the direction indicated by the arrow in Figs. 1and 2. The pin h bears against the part a of the rod A and causes it tobe bent around the projecting end of the rod h, and the part a isthereby brought into the position shown in Fig. 2. It is desirable,however, to bend the extreme end a of the part a into the shapesubstantially shown in Figs. 3, 4,9,10. To this end the part a, after ithas, by means of the rotation of the shaft H,been carried against theshoulder I, Figs. 1, 2, 3, and 4, is acted upon by what is termed thehammer J, which is caused to strike the end a against the shoulder I, asshown in Fig. 3, and thereby impart the desired shape to the end a. Before, however, the hammer can act upon the end a, the pin h must beremoved out of the way. The shaft H, therefore,just before it is timefor the hammer to act, is rotated backward into its original position.(Shown in Figs. 3 and 4.) The hammer then moves forward, as stated, andeffects the shaping of the part a.

The mechanism for operating the shaft H will now be described. Referringto Figs. 5, 6, 7, S, the main shaft E, which is arranged horizontallyand adapted to be rotated in suitable bcarings in the machine-frame, inaddition to the cam F is furnished with the bevelgear K, Figs. 5 and 7.This gear engages with the horizontal bevel-gear L, which is fastened tothe upright shaft Z. The rotation of the main shaft causes the shaft Zand gear L to rotate in the direction indicated by the arrow Z, Fig. 5.The shaft Z is also provided with the toothed segment l and the gear Z,Figs. 7 and 8. The toothed segmentZ engages with a gear, If, Figs. 5 and6, fastened to the shaft H. The rotation of the main shaft causes, bymeans of the engagement of the segment with the gear, as described, theshaft H to rotate in the direction indicated by the arrow h, Fig. 5,until the end of the segment is reached and the n11- toothed part Z ofthe segment comes opposite the gear It. The last-named part, being nowfree, is, by means of the spring M, Fig. 5, rapidly rotated in thecontrary direction, and at the right time to enable the pin h to bewithdrawn, as described, out of the way of the hammer and into theposition shown in Figs. 3 and 4. The spring M at its end in is fastenedto some part of the machine-frame, and its opposite end is coiled aroundat m, Fig. 6, and fastened to the shaft H, and when the segment Z isacting upon the gear h the spring is being wound upon the shaft H, andas soon as the segment ceases to engage with the gear the spring acts,as described, to turn the shaft backward. After the key has been shapedin the manner described, and the shaft has been turned backward to bringthe pin h into the position of Figs. 3, 4, the rod A is moved along, bymeans of the feed mechanism described, into position (indicated in Fig.4) for the key to be severed from the straight portion of the rod; butbefore this can be done, the rod h must be withdrawn downward below thelevel of the key, so as to offer no obstruction to the movement of therod. This withdrawal of the rod is effected, preferably, in thefollowing manner: N, Figs. 5, 6, represents a lever pivoted at n to afulcrum, n. One end, a, is pivoted to a slotted extension, h, of therod' h, and the opposite end, a, is extended and carried under ahorizontal disk, a that is fastened to an upright shaft, 0. A spring, P,fastened at one end to the lever N, and at the other end to themachine-frame, acts, through the lever N, to draw the rod h downward outof the way of the key whenever the end a" of the lever N is free torise. The end a cannot rise, however, as long as the disk n bears uponit, as shown in Fig. 6; but the rotation of the shaft 0 carries the diskaround until the end a comes oppositea recessed portion, a, of the disk,thereby providing room for the end ato rise. The spring 1? then acts andthe rod It moves downward, and remains depressed until the recessedportion a is passed, whereupon the lever end a is depressed, and, inconsequence, the spring 1? is stretched, and the rod k raised again.

The shaft 0 is rotated in the following manner: The motion of the gearZ, Figs. 7, S, is imparted to the gear Q, Fig. 5, which is journaled inthe bearing q, and imparts its motion in turn to the gear R upon theshaft 0, causing that shaft to rotate in the direction indicated by thearrow 0, Fig. 5. The gear R also serves to drive the gear S upon theshaft .9, and the gear S in turn drives the gear T upon the shaft t. Theshafts s tare respectively provided with the cams s and t, Figs. 1, 2,3, 4, 7, 8, which, respectively, are used in operating the rod-severingdevice U and the hammer J. The knife u is attached to the arm a, whichis slotted at o to receive and to provide for a reciprocating movementpast the shaft 8, and is held between the cam s and the top 0, and alsoin the bearing 0 upon the top 0, but so that it can be movedlongitudinally toward and from the rod A, the operation being asfollows: The cam s in its rotation in the direction indicated by thearrow 8', Figs. 1, 2, bears against the pin a that is attached to thearm a, and thereby causes the arm to be moved backward into the positionshown in Figs. 2, 3, and to hold it back until the point 8 of the campasses the pin u, whereupon the spring u, pressing at one end againstthe bearing 0 and at the other end against the shoulder a of the arm,acts to throw the arm sharply forward, and the knife u, in conjunctionwith the stationary knife u, to sever the key from the rod, as indicatedin Fig. 4, after which the knife a, by the action of the cam, isimmediately withdrawn to make room for the advancing rod A. The hammer Jis operated by an analogous mechanism, the cam t acting against the pinjupon the hammer-arm j to press the hammer backward, to be out of the wayuntil the blow is to be given, whereupon the springj acts to move thehammerarm and hammer sharply in the opposite di- IIO rection to shapethe end of the key, as described.

To insure the proper engagement of the gears Z h" it is desirable toemploy the mechanism shown in Fig. 11, and indicated in dotted lines inFig. 5. The gears or the shafts of the gears are respectively providedwith the arms Pand h, which are relatively so arranged and also soattached to the gears, respectively, as to insure the entrance of theteeth of the segment into the spaces between the teeth of the gear h,and to prevent them from striking the points of the last-named teeth. Tothis end the arm Z extends considerably beyond the periphery of thesegmentteeth, and so as to encounter the arm Win the manner indicated inFig. 11, and thereby correct and readjust relatively the gears Z 72 sothat they shall properly engage. The shoulder I is upon or attached tothe blockI. The stationary knife u is attached to the block u. The blockIf, Figs. 1, 2, 3, 4, forms a shoulder to arrest the projection h as theshaft H is turned backward. These blocks 1 u h are each made universallyadjustable, in a horizontal plane, upon the top O,to enable thereby theshoulder I and knife u to be properly placed, and the movement of thepart h to be properly limited.

We claim- 1. The reciprocating rotating part H,carrying the projectionh, in combination with the vertically operating part h,as and for thepurpose described.

2. The combination of the part H, having reciprocating rotary movement,and provided with the projection h, with the vertically-operating part hthe hammer J, and the block 1, having shoulder I,substantiall y asdescribed.

3.. The combination of the part H, having the reciprocating rotarymovement, and provided with the projection h,with the vertical 1y-operating part hflandtheknives u-u",substantially as described.

4. The combination of the part H,having the reciprocating rotarymovement, and pro vided with the projection 72, with theverticallyoperating part h, the hammer J, the block 1, having shoulderI, and'the severing device, substantially as described.

5. The combination of the feed device D D, the vertically-operating parth and the rotary reciprocating part H, carrying the projection h,substantially as described.

6. The combination of the feed deviceD D, the vertically-operating parth, the rotary reciprocating part H, carrying the projection h, thehammer J, the block l,having shoulder I, and the severing device,substantially as described.

7. The combination of the feed device, the rotary reciprocating partH,carrying the projection h, and having at its center a projectingbearing, around which the rotating projection h can wrap the rod end,and the severing device, substantially as described.

8. The combination of the hammer J and the block I, having shoulder I,subsiantially as described.

9. The combination of the forked lever G, the shaft E, the cam F, thelink G, the bellcrank G the rod G the pawl 9 the ratchet G, the shaft02, and the feed-rolls D D,having the gears d (1*, substantially asdescribed.

10. The combination of the shaft E, the gears K L, the'shafts ZH, thesegment Z and the gear h, substantially as described.

11. The combination of the shafts ZH, the segment Z the gear h, and thespring M,substantially as described.

12. The combination of the rod h the lever N, the shaft 0, the disknihaving the recessed portion a the bearing a, and the spring P,substantially as described.

13. The combination of the gears Q R S T, the shaft 8 t, the cams s t,the arms uj, the bearing 0, the pins a j, and the-springs a j",substantially as described.

14. The combination ofthe adjustable blocks I u h, the hammer J, tlieknife u, and the shaft H,having the projection h, substantially asdescribed.

JAMES MURRAY. DAVID A. BRISLIN.

Witnesses:

O. D. MooDY, J. W. HOKE.

